I am not seeing test ads in a newly created application, and iTunes Connect states that the app is receiving test ads. I keep receiving an "ad inventory unavailable" or "unknown error" message. I have integrated iAd with multiple applications and have yet to come across this issue.
I triple checked all app setup steps.
- Created app id
- Created new development provisioning profile
- Created new app in iTunes Connect
- Enabled iAd in iTunes Connect
- Applied the provisioning profile in Xcode